src/librarian/document.py

   1 import gettext
   2 import os
   3 import re
   4 from lxml import etree
   5 import six
   6 from .parser import parser
   7 from . import dcparser, DCNS, DirDocProvider
   8 from .functions import lang_code_3to2
   9
  10
  11 class WLDocument:
  12     def __init__(self, filename=None, url=None, provider=None):
  13         source = filename or six.moves.urllib.request.urlopen(url)
  14         tree = etree.parse(source, parser=parser)
  15         self.tree = tree
  16         tree.getroot().document = self
  17         self.base_meta = dcparser.BookInfo({}, {
  18             DCNS('language'): ["pol"],
  19         }, validate_required=False)
  20
  21         self.provider = provider if provider is not None else DirDocProvider('.')
  22
  23         self.tree.getroot().validate()
  24
  25     @property
  26     def meta(self):
  27         # Allow metadata of the master element as document meta.
  28         #master = self.tree.getroot()[-1]
  29         return self.tree.getroot().meta
  30         return master.meta
  31
  32     @property
  33     def children(self):
  34         for part_uri in self.meta.parts or []:
  35             yield type(self)(
  36                 filename=self.provider.by_slug(part_uri.slug),
  37                 provider=self.provider
  38             )
  39
  40     def build(self, builder, base_url=None, **kwargs):
  41         return builder(base_url=base_url).build(self, **kwargs)
  42
  43     def assign_ids(self, existing=None):
  44         # Find all existing IDs.
  45         existing = existing or set()
  46         que = [self.tree.getroot()]
  47         while que:
  48             item = que.pop(0)
  49             try:
  50                 item.normalize_insides()
  51             except AttributeError:
  52                 pass
  53             existing.add(item.attrib.get('id'))
  54             que.extend(item)
  55
  56         i = 1
  57         que = [self.tree.getroot()]
  58         while que:
  59             item = que.pop(0)
  60             que.extend(item)
  61             if item.attrib.get('id'):
  62                 continue
  63             if not getattr(item, 'SHOULD_HAVE_ID', False):
  64                 continue
  65             while f'e{i}' in existing:
  66                 i += 1
  67             item.attrib['id'] = f'e{i}'
  68             i += 1
  69
  70     def _compat_assign_ordered_ids(self):
  71         """
  72         Compatibility: ids in document order, to be roughly compatible with legacy
  73         footnote ids. Just for testing consistency, change to some sane identifiers
  74         at convenience.
  75         """
  76         EXPR = re.compile(r'/\s', re.MULTILINE | re.UNICODE)
  77         def _compat_assign_ordered_ids_in_elem(elem, i):
  78             elem.attrib['_compat_ordered_id'] = str(i)
  79             i += 1
  80             if getattr(elem, 'HTML_CLASS', None) == 'stanza':
  81                 if elem.text:
  82                     i += len(EXPR.split(elem.text)) - 1
  83                 for sub in elem:
  84                     i = _compat_assign_ordered_ids_in_elem(sub, i)
  85                     if sub.tail:
  86                         i += len(EXPR.split(sub.tail)) - 1
  87             else:
  88                 if elem.tag in ('uwaga', 'extra'):
  89                     return i
  90                 for sub in elem:
  91                     i = _compat_assign_ordered_ids_in_elem(sub, i)
  92             return i
  93
  94         _compat_assign_ordered_ids_in_elem(self.tree.getroot(), 4)
  95
  96     def _compat_assign_section_ids(self):
  97         """
  98         Ids in master-section order. These need to be compatible with the
  99         #secN anchors used by WL search results page to link to fragments.
 100         """
 101         def _compat_assigns_section_ids_in_elem(elem, prefix='sec'):
 102             for i, child in enumerate(elem):
 103                 idfier = '{}{}'.format(prefix, i + 1)
 104                 child.attrib['_compat_section_id'] = idfier
 105                 _compat_assigns_section_ids_in_elem(child, idfier + '-')
 106         _compat_assigns_section_ids_in_elem(self.tree.getroot().master)
 107
 108
 109     def editors(self):
 110         persons = set(self.meta.editors
 111                       + self.meta.technical_editors)
 112         for child in self.children:
 113             persons.update(child.editors())
 114         if None in persons:
 115             persons.remove(None)
 116         return persons
 117